So there is some system which will determine what are "extravances" - How do I get to be member of that commission, or if a computer program, on the working group that writes the program?
In a price market system you work to gain "coupons" which you can freely exchange for item A instead of item B if you value A more than B even though almost all have values reversed. (A < B). For example the if I want to get my protein from only yogurt and eat no animal tissue I can. No committee or computer program is deciding for me that x gram/week of meat are good for you, very few have your "personal preferences," so you can collect your allotted meat at the distribution center.
That's not as much of a problem as you suspect.
In my proposed system, instead of money, there are "Supply Packages".
Supply Packages can come in Day Units, Week Units or Month Units. And, for lack of a better word in a non-monetary system, let's call him / her, the
consumer, can pick and choose whether they want their supply packages in a Day Unit, a Week Unit or a Month Unit but they cannot exceed a Month Unit Package for a single month. Each of these units are comprised of supplies, let's use food for an example, that will meet the nutritional requirements for the naturally large person (just to make sure all people will be covered nutritionally) for either a day, a week or a month. And the citizen can pick and choose and swap out any smaller supply package units they choose within any larger unit as long as the units do not exceed the units set for a single month. So that way you can pick and choose your meals based on your preferences.
There will also be what are called "Meal Units" which are single items which can be swapped out with other meal units that comprise a Day Unit to provide even more nutritional customization in accordance with a citizen's preferences. So if you want carrots, and a Day Unit contains potatoes, you can swap the potatoes for the carrots. Or if you want yogurt, and part of the breakfast meal unit within a Day Unit is peaches, you can swap the peaches for yogurt.
The final size of these Supply Packages will not be subject to the whims of a commission or someone with access to the computer program but to the biological nutritional values determined by science to adequately support the daily functions and health of the human body for a Day, a Week or a Month.
And the principle, to varying degrees dependent upon the shelf life of different goods can be applied to other industry products. Obviously, you won't be able to get a new computer every month and you will have to show your current computer has some functional degradation to replace it. But, within reason, you can replace things.
But it's important to remember, if you want more food, for example, you are completely allowed to produce food through a garden by your own hand to supplement your monthly food supply. You just can sell anything.
There's two reasons why you can't sell anything to anyone:
1.) It discourages the hoarding and ill-gotten collection of cooperatively produced goods for resale. In other words, skimming of extra goods off the top for resale on a black market.
2.) It discourages the formation of underground cooperative production markets for the sale of items, which would be taking cooperative energy away from the system.
So you get caught selling anything, anywhere, you're in trouble.
The problem without using earned coupons to get what you prefer (and have coupons for) is much worse when speaking of one-of-kind items or very limited numbers compared to huge demand items (front row, center seat at play or baseball signed by Mickey Mantle, Picasso painting, etc.) How does the allocation committee or computer program decide if I or Tom gets the one-of-a-kind item?
Simple. The way it solves everything. You can give the item away but you can't sell it. The primary goal of the cooperative system is not to eliminate every single minor inequality. As I said, if something gets produced in a low number cooperatively, the goods go out on a first come, first served basis. And if something gets produced in a low number by an individual, they can give it to whomever they want. They just can't sell it.
You can't sell. You cannot sell. Once you start selling, you're undermining the cooperative system. If you and a group of people want to entirely renounce your provisions and citizenship from the system and engage in a buy and sell economy off by yourselves in your own nation, that's fine. You're perfectly free to do that and the system would even encourage you. But you're not going to be allowed to impose those kind of rules on resources and products within a non-monetary cooperative system. Both kinds of systems must be kept completely self-contained and separate.